skinput technology is an input device that allows user skin as an input.

1. THE HUMAN BODY AS TOUCH SCREENTHE HUMAN BODY AS TOUCH SCREEN
PRESENTED BY:
S.YAMINI,
12F45A0513,
IV CSE-B

2. CONTENTSCONTENTS
► AbstractAbstract
► IntroductionIntroduction
► PrinciplePrinciple
► How it worksHow it works
► ImplementationImplementation
► ApplicationApplication
► AdvantageAdvantage
► DisadvantageDisadvantage
► Skinput in futureSkinput in future
► ConclusionConclusion
► ReferencesReferences

3. ABSTRACTABSTRACT
Skinput is an input technology that uses bio-acousticSkinput is an input technology that uses bio-acoustic
sensing to localize finger taps on the skin. Whensensing to localize finger taps on the skin. When
augmented with a Pico-projector, the device canaugmented with a Pico-projector, the device can
provide a direct manipulation, graphical user interfaceprovide a direct manipulation, graphical user interface
on the body. This allows the body to be annexed as anon the body. This allows the body to be annexed as an
input surface without the need for the skin to beinput surface without the need for the skin to be
invasively instrumented with sensors, tracking markers,invasively instrumented with sensors, tracking markers,
or other items.or other items.

4. INTRODUCTIONINTRODUCTION
► Skinput is a technology which uses the surface of theSkinput is a technology which uses the surface of the
skin as an input device.skin as an input device.
► To capture this acoustic information , they developed aTo capture this acoustic information , they developed a
wearable armband that is non-invasive and easilywearable armband that is non-invasive and easily
removable.removable.
► It was developed by Chris Harrison, Densely Tan, andIt was developed by Chris Harrison, Densely Tan, and
Dan Morris of the Microsoft Research's ComputationalDan Morris of the Microsoft Research's Computational
User Experiences Group(MRCUEGUser Experiences Group(MRCUEG))
CONTINUE……CONTINUE……

5. ► Skinput allows the user to simply tap theirSkinput allows the user to simply tap their
skin in order to control audio devices, playskin in order to control audio devices, play
games, make phone call.games, make phone call.
► It uses the sensors to determine where the userIt uses the sensors to determine where the user
taps on their skin.taps on their skin.
► Its first public appearance was at Microsoft'sIts first public appearance was at Microsoft's
Tech Fest 2010Tech Fest 2010

6. PRINCIPLE OF SKINPUTPRINCIPLE OF SKINPUT
► It listens to vibrations in your body.It listens to vibrations in your body.
► Skinput also responds to the various hand gestures.Skinput also responds to the various hand gestures.
► The arm is an instrument.The arm is an instrument.
Arm band detects the acoustic signals and convert themArm band detects the acoustic signals and convert them
to electronic signals which easily enable the users toto electronic signals which easily enable the users to
perform simple tasks as browsing through a mobileperform simple tasks as browsing through a mobile
phone menu, making calls, controlling portable musicphone menu, making calls, controlling portable music
players, etc..players, etc..

7. WHAT MAKES IT WORKWHAT MAKES IT WORK

8. PICO- PROJECTORPICO- PROJECTOR
► very small projector, basically used in gadgetsvery small projector, basically used in gadgets
► Pico projector applies the use of projector in aPico projector applies the use of projector in a
hand held device.hand held device.
► The system comprises three main parts:The system comprises three main parts:
 The Laser light sourceThe Laser light source
 The Combiner opticsThe Combiner optics
 The Scanning mirrorThe Scanning mirror

9. BIO- ACOUSTICSBIO- ACOUSTICS
► Study of sound waves inside living body.Study of sound waves inside living body.
► When a finger taps the skin, several distinct forms ofWhen a finger taps the skin, several distinct forms of
acoustic energy are produced.acoustic energy are produced.
1. Longitudinal Waves1. Longitudinal Waves
2. Transverse Waves2. Transverse Waves
► An acoustic detector detects the ultra low frequencyAn acoustic detector detects the ultra low frequency
► These waves form the integral part of the whole conceptThese waves form the integral part of the whole concept
of skinput.of skinput.

11. BIO- ACOUSTICS (SENSING)BIO- ACOUSTICS (SENSING)
► These signals need to be sensed and worked upon.These signals need to be sensed and worked upon.
► This is done by wearing the wave sensor arm band.This is done by wearing the wave sensor arm band.

12. HOW IT WORKSHOW IT WORKS
► In Skinput, a keyboard, menu, or other graphics areIn Skinput, a keyboard, menu, or other graphics are
beamed onto a user's palm and forearm from a picobeamed onto a user's palm and forearm from a pico
projector embedded in an armband.projector embedded in an armband.
► An acoustic detector in the armband then determines whichAn acoustic detector in the armband then determines which
part of the display is activated by the user's touch.part of the display is activated by the user's touch.
► Their software matches sound frequencies to specific skinTheir software matches sound frequencies to specific skin
locations, allowing the system to determine which “skinlocations, allowing the system to determine which “skin
button” the user pressed.button” the user pressed.

13. PROCESSING: ModelPROCESSING: Model

15. IMPLEMENTATIONIMPLEMENTATION
IMPLEMENTATION ON PARALYZED PERSONIMPLEMENTATION ON PARALYZED PERSON
OR PHYSICALLY DISABLED PERSON.OR PHYSICALLY DISABLED PERSON.
 If a person is paralyzed or physically disable we canIf a person is paralyzed or physically disable we can
implement this technology. The feature of skinputimplement this technology. The feature of skinput
technology provides a projected graphical interface ontechnology provides a projected graphical interface on
the skin, so the person who is paralyzed or physicallythe skin, so the person who is paralyzed or physically
disable they can use it easily like making a call,disable they can use it easily like making a call,
playing game, control music player application etc.playing game, control music player application etc.

16. IMPLEMENTATION IN EDUCATION SYSTEMIMPLEMENTATION IN EDUCATION SYSTEM
► Through the help of Skinput technology we canThrough the help of Skinput technology we can
implement in education system like we can useimplement in education system like we can use
calculator or browsing through a mobile phone etc...calculator or browsing through a mobile phone etc...

17. APPLICATIONSAPPLICATIONS
► MobileMobile
► GamingGaming
► I-podsI-pods
► Educational SystemEducational System

18. USING FINGERS AS CONTROL PAD OF GAMEUSING FINGERS AS CONTROL PAD OF GAME
► Through Skinput we can play games with just theThrough Skinput we can play games with just the
movement of our hands. This will introduce a totallymovement of our hands. This will introduce a totally
new era of gaming.new era of gaming.

19. Making a Phone Call Using SkinputMaking a Phone Call Using Skinput
► We can turn our arm into a cellphone It will be possibleWe can turn our arm into a cellphone It will be possible
to make calls by just typing numbers that flash on yourto make calls by just typing numbers that flash on your
forearm. All other functions can also be performedforearm. All other functions can also be performed
using Skinput. We can also increase or decrease theusing Skinput. We can also increase or decrease the
volume or change the track of our music players like thevolume or change the track of our music players like the
i-pod without actually touching the gadget.i-pod without actually touching the gadget.

20. ADVANTAGESADVANTAGES
► No need to interact with the gadget directly.No need to interact with the gadget directly.
► Don’t have to worry about keypad.Don’t have to worry about keypad.
► People with larger fingers get trouble in navigating tinyPeople with larger fingers get trouble in navigating tiny
buttons and keypads on mobile phones. With skinputbuttons and keypads on mobile phones. With skinput
this problem disappears.this problem disappears.

21. DISADVANTAGESDISADVANTAGES
► Though the band seems easy enough to slip on, manyThough the band seems easy enough to slip on, many
people would not wear a very big band around their armpeople would not wear a very big band around their arm
for the day.for the day.
► Not enough research has been conducted on thisNot enough research has been conducted on this
product to test the possible skin diseases or types ofproduct to test the possible skin diseases or types of
cancer, one can get from using this product.cancer, one can get from using this product.
► This technology might start up at very high cost whichThis technology might start up at very high cost which
will not be affordable for the common man.will not be affordable for the common man.

22. SKINPUT IN FUTURESKINPUT IN FUTURE
► The most profound achievement of Skinput isThe most profound achievement of Skinput is
proving that the human body can be used as aproving that the human body can be used as a
sensor.sensor.
► A person might walk toward their home, tapA person might walk toward their home, tap
their palm to unlock the door and then tap sometheir palm to unlock the door and then tap some
virtual buttons on their arms to turn on the TVvirtual buttons on their arms to turn on the TV
and start flipping through channels.and start flipping through channels.
► Extensive Research is going on Currently onExtensive Research is going on Currently on
Skinput to make the armband more smaller.Skinput to make the armband more smaller.
► Incorporate More Devices with This System.Incorporate More Devices with This System.
► Extend accuracy level.Extend accuracy level.

23. CONCLUSIONCONCLUSION
► Skinput allows the human body as an input surface.Skinput allows the human body as an input surface.
► It describes a novel, wearable bio-acoustic sensing arrayIt describes a novel, wearable bio-acoustic sensing array
that we built into an armband in order to detect andthat we built into an armband in order to detect and
localize finger taps on the forearm and hand.localize finger taps on the forearm and hand.
► This system performs well even when the body is inThis system performs well even when the body is in
motion.motion.

24. REFERENCESREFERENCES
► microsoft.commicrosoft.com
► wikipedia.comwikipedia.com
► seminarsonly.comseminarsonly.com
► http://www.chrisharrison.net/projects/skinput/SkinputHhttp://www.chrisharrison.net/projects/skinput/SkinputH
arrison.pdfarrison.pdf